In past with .NET Framework I used this example for working with nuget programmatically
Play with Packages, programmatically!
Is there any equivalent source for .NET Core?
//ID of the package to be looked up
string packageID = "EntityFramework";
//Connect to the official package repository
IPackageRepository repo = PackageRepositoryFactory.Default.CreateRepository("https://packages.nuget.org/api/v2");
//Get the list of all NuGet packages with ID 'EntityFramework'
List<IPackage> packages = repo.FindPackagesById(packageID).ToList();
//Filter the list of packages that are not Release (Stable) versions
packages = packages.Where (item => (item.IsReleaseVersion() == false)).ToList();
//Iterate through the list and print the full name of the pre-release packages to console
foreach (IPackage p in packages)
{
Console.WriteLine(p.GetFullName());
}
//---------------------------------------------------------------------------
//ID of the package to be looked up
string packageID = "EntityFramework";
//Connect to the official package repository
IPackageRepository repo = PackageRepositoryFactory.Default.CreateRepository("https://packages.nuget.org/api/v2");
//Initialize the package manager
string path = <PATH_TO_WHERE_THE_PACKAGES_SHOULD_BE_INSTALLED>
PackageManager packageManager = new PackageManager(repo, path);
//Download and unzip the package
packageManager.InstallPackage(packageID, SemanticVersion.Parse("5.0.0"));
I want to download and install any package programmatically.
https://api.nuget.org/v3/index.json
The code sample you have shown uses NuGet 2 which is not supported on .NET Core. You'll need to use NuGet 3 or the (soon to be released) NuGet 4. These APIs are a huge break from NuGet 2. One of these breaking changes is that NuGet.Core is obsolete on won't be ported to .NET Core.
Checkout NuGet API v3 on docs.microsoft.com for info on NuGet 3. At the time of writing, this doc is basically a big TODO and doesn't have much info.
Here are some blog posts that are more useful.
Exploring the NuGet v3 Libraries, Part 1
Introduction and concepts
Exploring the NuGet v3 Libraries, Part 2
Exploring the NuGet v3 Libraries, Part 3
And of course, you can always go spelunking through NuGet's source code to find more examples. Most of the core logic lives in https://github.com/nuget/nuget.client.
Best way to achieve it is by referring NugetDownloader Nuget package in your Project and use it to download any other package programmatically
Install-Package NugetDownloader
Source code and help guide on the same is available at :
https://github.com/paraspatidar/NugetDownloader
Here is a quick sample on how to achieve it :
string packageName="Newtonsoft.json";
string version="10.2.1.0"; \\optional
\\initilize NugetEngine from NugetDownloader namespaces
NugetEngine nugetEngine = new NugetEngine();
nugetEngine.GetPackage(packageName, version).Wait();
sample client is also available at https://github.com/paraspatidar/NugetDownloader/tree/master/NugetDownloaderTestConsole
Alternately In case if you want to build your Nugetdownloader engine from scratch , then you might also refer https://github.com/Azure/azure-functions-host/blob/dev/src/WebJobs.Script/Description/DotNet/PackageManager.cs as it has something similar implementation , but that too much of code understanding and extraction.
